WO2022092009A1 - Dispositif de source de lumière et dispositif d'affichage de type à projection - Google Patents

Dispositif de source de lumière et dispositif d'affichage de type à projection Download PDF

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Publication number
WO2022092009A1
WO2022092009A1 PCT/JP2021/039259 JP2021039259W WO2022092009A1 WO 2022092009 A1 WO2022092009 A1 WO 2022092009A1 JP 2021039259 W JP2021039259 W JP 2021039259W WO 2022092009 A1 WO2022092009 A1 WO 2022092009A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
red
green
blue
Prior art date
Application number
PCT/JP2021/039259
Other languages
English (en)
Japanese (ja)
Inventor
孝明 田中
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2022092009A1 publication Critical patent/WO2022092009A1/fr
Priority to US18/138,408 priority Critical patent/US20230259013A1/en

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • G03B33/10—Simultaneous recording or projection
    • G03B33/12—Simultaneous recording or projection using beam-splitting or beam-combining systems, e.g. dichroic mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the light source device of the present disclosure includes a red solid light source that emits red light, a green solid light source that emits green light, a blue solid light source that emits blue light, and red light and green solid light sources that emit from the red solid light source.
  • a second polarizing mirror that synthesizes green light emitted from, and a beam dividing element that divides blue light emitted from a blue solid light source into transmitted light and reflected light, and transmits or reflects the combined red light and green light. , Equipped with.
  • a green laser light source 34 composed of a green semiconductor laser substrate 32 in which elements are arranged and a collimated lens array 33, a green laser light source 38 composed of a green semiconductor laser substrate 36 in which a plurality of green semiconductor laser elements are arranged and a collimated lens array 37, and a plurality of blue colors.
  • a blue laser light source 44 composed of a blue semiconductor laser substrate 42 on which a semiconductor laser element is arranged and a collimating lens array 43, a beam dividing element 40, a blue-reflecting dichroic mirror 41, and heat-dissipating plates 23, 27, 35, 39, 45 are provided.
  • FIG. 1 shows the polarization direction of the light emitted from the laser light source.
  • the S-polarized light from the green laser light source 34 is reflected by the second polarizing mirror 31.
  • the lights of the plurality of green laser light sources 34 and 38 are combined.
  • the phases of the P-polarized and S-polarized red light from the plurality of red laser light sources 22 and 26 change in phase on the 1/4 wave plate 30 to become elliptically polarized light, and after passing through, the second polarizing mirror 31 is used. It is transparent at 95% or more. In this way, the light from the plurality of red laser light sources and the light from the plurality of green laser light sources are combined.
  • the blue laser light source 44 is composed of a blue semiconductor laser substrate 42 and a collimating lens array 43 in which 12 (6 ⁇ 2) blue semiconductor laser elements are arranged two-dimensionally at regular intervals.
  • the blue semiconductor laser substrate 42 emits blue light with a wavelength width of 465 ⁇ 8 nm, and emits light to be S-polarized to the beam dividing element 40.
  • the blue semiconductor laser is composed of about 1/4 of the number of semiconductor lasers because the luminous efficiency is higher than that of the red and green semiconductor lasers and the light output required for the desired white light chromaticity is small.
  • the light emitted from the blue semiconductor laser substrate 42 is condensed by the corresponding collimating lens array 43 and converted into parallel light fluxes.
  • the heat sink 45 cools the blue semiconductor laser substrate 42.
  • the light from the blue laser light source 44 is incident on the beam dividing element 40.
  • the beam dividing element 40 is arranged so that the incident angle is 45 degrees.
  • the P-polarized red light from the red laser light source 22 and the S-polarized red light from the red laser light source 26 are combined by the first polarizing mirror 28. If a sufficient amount of red light can be secured, the red light is configured to be directly incident on the red transmission and green reflection filter 29 without synthesizing the red light by the first polarizing mirror 28 by using the polarization. You may. The same applies when the arrangement of the red laser light source and the green laser light source is exchanged.
  • FIG. 6 is a block diagram of a second light source device 75 showing the second embodiment of the present disclosure.
  • the red laser light source 52 is composed of a red semiconductor laser substrate 50 and a collimating lens array 51 in which 24 (6 ⁇ 4) red semiconductor laser elements are arranged two-dimensionally at regular intervals.
  • the red semiconductor laser substrate 50 emits red light with a wavelength width of 640 ⁇ 8 nm, and emits light that becomes P-polarized with respect to the first polarizing mirror 58.
  • the light emitted from the red semiconductor laser substrate 50 is condensed by the corresponding collimating lens array 51 and converted into parallel light fluxes.
  • the heat sink 53 cools the red semiconductor laser substrate 50.
  • the beam dividing element 69 has, for example, the same spectral characteristics as the beam dividing element 40 shown in FIG.
  • the blue light transmitted through the beam dividing element 69 is incident on the blue-reflecting dichroic mirror 70.
  • the blue-reflecting dichroic mirror 70 is arranged so that the incident angle is 45 degrees.
  • the blue-reflecting dichroic mirror 70 reflects blue light at 95% or more, and transmits green light and red light at 95% or more.
  • the blue-reflecting dichroic mirror 70 has, for example, the same spectral characteristics as the blue-reflecting dichroic mirror 41 shown in FIG.
  • a 1/4 wave plate is not arranged, but a dichroic mirror for green reflection is arranged, so that the size is slightly increased.
  • an expensive 1/4 wave plate is not arranged, an inexpensive light source device can be configured.
  • the red laser light sources 52 and 56 and the green laser light sources 62 and 67 are arranged, but the characteristics of the first and second polarizing mirrors, the green reflection dichroic mirror and the like are provided.
  • the green laser light source may be arranged at the positions of the red laser light sources 52 and 56, and the red laser light source may be arranged at the positions of the green laser light sources 62 and 67.
  • the light source device of the present disclosure is provided with a blue, green, and red laser light sources, a polarizing mirror, a dichroic mirror, and a beam dividing element to equalize the luminous flux size of the laser light of each color light. .. Therefore, it is possible to configure a compact and highly efficient light source device while ensuring high uniformity.
  • the third light source device 87 includes a light source optical system 76 composed of red laser light sources 22 and 26, green laser light sources 34 and 38, an optical system that synthesizes red laser light and green laser light, and a plurality of blue semiconductor lasers. It includes a blue laser light source 82 composed of a blue semiconductor laser substrate 80 in which elements are arranged, a collimating lens array 81, a blue transmission dichroic mirror 84, a beam dividing element 85, a blue reflection dichroic mirror 86, and a heat dissipation plate 83. ..
  • the characteristics of transmitting and reflecting blue light at approximately 50% are the characteristics of transmitting and reflecting at 40% to 60% and reflecting at 60% to 40%, including tolerances.
  • the beam dividing element 85 reflects approximately 50% blue light, and green light and red light reflected by the blue-transmitting dichroic mirror 84. Approximately 50% of the blue light transmitted through the beam dividing element 85 is reflected by the blue-reflecting dichroic mirror 86, and is combined with the green light and red light transmitted through the blue-reflecting dichroic mirror 86.

Abstract

Le présent dispositif de source de lumière comprend : une source de lumière rouge à semi-conducteurs qui émet une lumière rouge ; une source de lumière verte à semi-conducteurs qui émet de la lumière verte ; une source de lumière bleue à semi-conducteurs qui émet une lumière bleue ; un second miroir de polarisation qui combine la lumière rouge émise par la source de lumière rouge à semi-conducteurs et la lumière verte émise par la source de lumière verte à semi-conducteurs ; et un élément de division de faisceau qui divise la lumière bleue émise par la source de lumière bleue à semi-conducteurs en une lumière transmise et une lumière réfléchie, et qui transmet ou réfléchit la lumière rouge et la lumière verte combinées. Ce dispositif d'affichage de type à projection comprend : le dispositif de source de lumière ; une plaque de diffuseur dynamique sur laquelle la lumière combinée provenant du dispositif de source de lumière est incidente et qui réduit le bruit modal de la lumière combinée ; un système optique d'éclairage qui collecte la lumière combinée provenant de la plaque de diffusion dynamique et qui éclaire une zone à éclairer ; un élément de formation d'image qui utilise la lumière combinée provenant du système optique d'éclairage pour former une image conformément à un signal vidéo ; et une lentille de projection qui agrandit et projette l'image formée par l'élément de formation d'image.
PCT/JP2021/039259 2020-10-28 2021-10-25 Dispositif de source de lumière et dispositif d'affichage de type à projection WO2022092009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/138,408 US20230259013A1 (en) 2020-10-28 2023-04-24 Light source device and projection display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-180243 2020-10-28
JP2020180243A JP2022071342A (ja) 2020-10-28 2020-10-28 光源装置および投写型表示装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/138,408 Continuation US20230259013A1 (en) 2020-10-28 2023-04-24 Light source device and projection display apparatus

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WO2022092009A1 true WO2022092009A1 (fr) 2022-05-05

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US (1) US20230259013A1 (fr)
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WO (1) WO2022092009A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06289392A (ja) * 1993-04-06 1994-10-18 Casio Comput Co Ltd 液晶プロジェクタ
JP2016061897A (ja) * 2014-09-17 2016-04-25 ソニー株式会社 照明装置および投射型表示装置
US20180120682A1 (en) * 2015-09-21 2018-05-03 Iview Displays (Shenzhen) Company Ltd. Lighting projection device and projection module having same
JP2020003519A (ja) * 2018-06-25 2020-01-09 パナソニックＩｐマネジメント株式会社 光源装置及び投写型立体表示装置
JP2020020962A (ja) * 2018-07-31 2020-02-06 株式会社リコー 光学ユニットおよび画像投射装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06289392A (ja) * 1993-04-06 1994-10-18 Casio Comput Co Ltd 液晶プロジェクタ
JP2016061897A (ja) * 2014-09-17 2016-04-25 ソニー株式会社 照明装置および投射型表示装置
US20180120682A1 (en) * 2015-09-21 2018-05-03 Iview Displays (Shenzhen) Company Ltd. Lighting projection device and projection module having same
JP2020003519A (ja) * 2018-06-25 2020-01-09 パナソニックＩｐマネジメント株式会社 光源装置及び投写型立体表示装置
JP2020020962A (ja) * 2018-07-31 2020-02-06 株式会社リコー 光学ユニットおよび画像投射装置

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US20230259013A1 (en) 2023-08-17
JP2022071342A (ja) 2022-05-16

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